(m)-9=21

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Solution for (m)-9=21 equation: 


Simplifying
(m) + -9 = 21
m + -9 = 21

Reorder the terms:
-9 + m = 21

Solving
-9 + m = 21

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '9' to each side of the equation.
-9 + 9 + m = 21 + 9

Combine like terms: -9 + 9 = 0
0 + m = 21 + 9
m = 21 + 9

Combine like terms: 21 + 9 = 30
m = 30

Simplifying
m = 30

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